Influence of Ti2SnC content on arc erosion resistance in Ag–Ti2SnC composites

Huang Xiaochen; Ding Yunfei; Li Liang; Ge Jinlong; Wang Yongkui; Zhao Hao; Zhou Zijue; Chen Hongyu

doi:10.1515/secm-2022-0244

Science and Engineering of Composite Materials (Mar 2024)

Influence of Ti2SnC content on arc erosion resistance in Ag–Ti2SnC composites

Huang Xiaochen,
Ding Yunfei,
Li Liang,
Ge Jinlong,
Wang Yongkui,
Zhao Hao,
Zhou Zijue,
Chen Hongyu

Affiliations

Huang Xiaochen: School of Material and Chemical Engineering, Bengbu University, Anhui, 233030, China
Ding Yunfei: School of Mechanical and Ocean Engineering, Jiangsu Ocean University, Jiangsu, 222005, China
Li Liang: School of Material and Chemical Engineering, Bengbu University, Anhui, 233030, China
Ge Jinlong: School of Material and Chemical Engineering, Bengbu University, Anhui, 233030, China
Wang Yongkui: School of Material and Chemical Engineering, Bengbu University, Anhui, 233030, China
Zhao Hao: School of Chemical and Materials Engineering, Anhui Science and Technology University, Bengbu, 233100, China
Zhou Zijue: School of Chemistry and Materials Engineering, Huainan Normal University, Huainan, 232001, China
Chen Hongyu: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310023, China

DOI: https://doi.org/10.1515/secm-2022-0244
Journal volume & issue: Vol. 31, no. 1
pp. 33670 – 81

Abstract

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In this work, an Ag–Ti2SnC composite was fabricated by the hot-pressing sintering method, and the erosion behavior of Ag–Ti2SnC with volume percentages of 10–40% was studied at a load voltage of 10 kV. The arc life and breakdown current were observed at about 31–36 ms and 39 A, respectively. The cathode spot traveled the fastest on the surface of the Ag–40 vol% Ti2SnC composite. Due to emission center model, the temperature of the minor protrusions on the cathode surface increased, resulting in Ag ions, Ti ions, and Sn ions being generated. Combining with the ionized oxygen, Ag2O, AgO, TiO2, and SnO2 were formed on the eroded Ag–Ti2SnC surface after arc erosion. The research results will broaden the application range of Ag–Ti2SnC electrical contact material and enrich the arc erosion mechanism.

Published in Science and Engineering of Composite Materials

ISSN: 0792-1233 (Print); 2191-0359 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.degruyter.com/view/j/secm

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